CN110536466A

CN110536466A - Data transmission method, device and system

Info

Publication number: CN110536466A
Application number: CN201910759549.1A
Authority: CN
Inventors: 苗婷; 毕峰; 刘文豪; 卢有雄; 邢卫民
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2019-08-16
Filing date: 2019-08-16
Publication date: 2019-12-03
Also published as: WO2021031955A1

Abstract

The application proposes a kind of data transmission method, device and system, and a kind of data transmission method includes: that first node receives timing related information；First node includes transmitting uplink data or downlink data transmission according to timing related information schedule data transmission, data transmission.

Description

Data transmission method, device and system

Technical field

This application involves cordless communication networks, such as are related to a kind of data transmission method, device and system.

Background technique

It newly eats dishes without rice or wine in (New Radio, NR), allows more flexible in the 5th third-generation mobile communication (5th Generation, 5G) Networking mode and new type network node presence.At present incorporate backhaul link (backhaul link) and normally The new type node of access link (access link), i.e. access passback integral node (Integrated Access and Backhaul Node, IAB Node) can provide it is more more flexible than single cellular node covering cover and networking mode, It will be the important component in future mobile communications network.

IAB node includes that two functions, respectively distributed unit (Distributed Unit, DU) function and movement are whole (Mobile Termination, MT) function is held, DU function enables IAB node to be that child node or user set as base station Standby (User Equipment, UE) provides wireless access function, and MT function enables IAB node as UE by father node control System and scheduling.

IAB node has terminal and base station dual identity, and different identity has respective transmitting-receiving timing, this saves IAB Although MT and the DU of point in the time domain using different symbols, be also likely to be present in the time domain it is overlapping, especially by half-duplex In the case where limitation, it may need to receive and dispatch conversion time between the MT and DU of IAB node or hair receives conversion time, these problems are all It may cause resource used in the MT and DU of IAB node and generate conflict.

Summary of the invention

The application provides a kind of data transmission method, device and system, improves resource utilization and data transmission performance.

The embodiment of the present application provides a kind of data transmission method, comprising:

First node receives timing related information；

First node includes transmitting uplink data or lower line number according to timing related information schedule data transmission, data transmission According to transmission.

Second node determines timing related information；

Second node reports timing related information to first node, and timing related information dispatches the second section for first node The data transmission of the data transmission of point, second node includes transmitting uplink data or downlink data transmission.

First node receives protection interval；

For first node according to protection interval schedule data transmission, data transmission includes that transmitting uplink data or downlink data pass It is defeated.

Second node determines protection interval；

Second node reports protection interval, data of the protection interval for first node scheduling second node to first node The data transmission of transmission, second node includes transmitting uplink data or downlink data transmission.

The embodiment of the present application provides a kind of data transmission device, is set to first node, comprising:

Receiving module is set as receiving timing related information；

Scheduler module is set as according to timing related information schedule data transmission, and the data transmission of second node includes upper The transmission of row data or downlink data transmission.

The embodiment of the present application provides a kind of data transmission device, is set to second node, comprising:

Determining module is set as determining timing related information；

Sending module is set as reporting timing related information to first node, and timing related information is used for first node tune The data transmission of second node is spent, the data transmission of second node includes transmitting uplink data or downlink data transmission.

Receiving module is set as receiving protection interval；

Scheduler module is set as according to protection interval schedule data transmission, data transmission include transmitting uplink data or under The transmission of row data.

Determining module is set as determining protection interval；

Sending module is set as reporting protection interval to first node, and protection interval dispatches the second section for first node The data transmission of the data transmission of point, second node includes transmitting uplink data or downlink data transmission.

The embodiment of the present application provides a kind of data transmission system, including first node and second node；

First node includes data transmission device shown in embodiment as shown in Figure 10；

Second node includes data transmission device shown in embodiment as shown in figure 11.

First node includes data transmission device shown in embodiment as shown in figure 12；

Second node includes data transmission device shown in embodiment as shown in figure 13.

Detailed description of the invention

Fig. 1 is the connection relationship diagram of IAB node；

Fig. 2 is another connection relationship diagram of IAB node；

Fig. 3 is IAB node timing relationship schematic diagram；

Fig. 4 is a kind of flow chart for data transmission method that an embodiment provides；

Fig. 5 is the flow chart for another data transmission method that an embodiment provides；

Fig. 6 is the flow chart for another data transmission method that an embodiment provides；

Fig. 7 is the flow chart for another data transmission method that an embodiment provides；

Fig. 8 a- Fig. 8 h is the timing diagram for another data transmission method that the embodiment of the present application one provides；

Fig. 9 a- Fig. 9 l is a kind of timing diagram for data transmission method that the embodiment of the present application two provides；

Figure 10 is a kind of structural schematic diagram for data transmission device that an embodiment provides；

Figure 11 is the structural schematic diagram for another data transmission device that an embodiment provides；

Figure 12 is the structural schematic diagram for another data transmission device that an embodiment provides；

Figure 13 is the structural schematic diagram for another data transmission device that an embodiment provides；

Figure 14 is a kind of structural schematic diagram for communication node that an embodiment provides；

Figure 15 is the structural schematic diagram for another communication node that an embodiment provides.

Specific embodiment

Embodiments herein is described in detail below in conjunction with attached drawing.

Fig. 1 is the connection relationship diagram of IAB node, as shown in Figure 1, IAB node tool is there are two function, respectively DU and MT.IAB node can be attached with father node, child node, UE.Wherein when the MT function of IAB node is connected with father node The link connect is known as father's backhaul link (Parent Backhaul Link), and is divided into downlink father's backhaul link (Parent Backhaul Link DL) and uplink father backhaul link (Parent Backhaul Link UL).IAB node DU function is under The link being attached between the child node of level-one is known as sub- backhaul link (Child Backhaul Link), and is divided into downlink Sub- backhaul link (Child Backhaul Link DL) and the sub- backhaul link of uplink (Child Backhaul Link UL). The link being attached between the DU function and UE of IAB node is known as sub- access link (Child Access Link), and is divided into The sub- access link of downlink (Child Access Link DL) and the sub- access link of uplink (Child Access Link UL).It needs It to be said, a backhaul link is that father's backhaul link or sub- backhaul link depend on the reference mode chosen.Such as Fig. 1 In, if using child node as reference mode, for child node, link (the i.e. sub- backhaul chain of IAB node connected to it Road) it is father's backhaul link.

MT is the unit that UE function is served as in IAB node, and there are three types of time resource types, respectively downlink (Downlink, DL), flexibly (Flexible, F) and uplink (Uplink, UL), in addition, being also possible that unavailable time resource (Not Available, NA).DU is the unit that base station functions are served as in IAB node, and the time resource of DU is equally just like lower class Type: DL, F, UL and NA, and time resource the type DL, F and UL of DU divide into again it is hard (Hard) and soft (Soft), wherein The sublink of IAB node always can be used in Hard resource, and the availability of soft resource needs further instruction.So DU includes altogether 7 kinds of time resource types are respectively as follows: Hard DL resource, Soft DL resource, Hard F resource, Soft F resource, Hard UL Resource, Soft UL resource, NA resource.NA resource refers to the non-serviceable resource of DU, unless it is specific to be configured with cell in NA resource Signal transmission, such as transmission of synchronization signal block etc..Whether Soft resource can be with needing father node explicitly to refer to for DU Show or DU implicitly obtains the availability of Soft resource according to father node to the dispatch situation of MT.To simplify description, Wo Menyong Soft IA (Soft Indicated Available) expression is designated as available Soft resource, with Soft NIA (Soft Not Indicated Available) it indicates not being designated as available Soft resource.Above-mentioned MT and DU refers both to the same IAB The MT and DU of node.In addition symbol can be orthogonal frequency division multiplexing (Orthogonal Frequency Division in the present invention Multiplexing, OFDM) symbol.

Fig. 2 is another connection relationship diagram of IAB node, as shown in Fig. 2, first node, second node and third section Point is respectively the network node in network.First node can be base station, alms giver IAB node or IAB node, and second node can be with For relay station or IAB node, third node can be terminal device or IAB node.In general, a node is responsible for scheduling Transmission between the node and next stage node or terminal.First node, second node and third node can also be channel radio Other network equipments or terminal device in letter system.First link is the chain that first node carries out data transmission to second node Road, the second link are the link that carries out data transmission to third node of second node, and third link is second node to first segment The link that point carries out data transmission, the 4th link are the link that third node carries out data transmission to second node.

Can there are certain propagation delay time, first node, second node and third section since data are sent to reception Certain timing relationship is had between each link between point.Fig. 3 is IAB node timing relationship schematic diagram, wherein under DL expression Row, UL indicate uplink, and Tx indicates transmission/transmitting (Transmission), and Rx indicates to receive (Reception).In IAB network In, IAB node includes two functional units of MT and DU, therefore by taking second node is IAB node as an example, then the DL of second node Rx timing and UL Tx timing respectively indicate the DL Rx timing of the MT of second node and the UL Tx timing of MT, the DL of second node Tx timing and UL Rx timing respectively indicate the DL Tx timing of the DU of second node and the UL Rx timing of DU.It should be noted that Here timing relationship is only to illustrate, and actual timing relationship is without being limited thereto.

In addition, in the embodiment of the present application, St indicates the transmitting-receiving conversion time of the network equipment or terminal or turns between the hair time receiving Change the time.Its value depends on the actual transmitting-receiving conversion time of second node or hair receipts conversion time or predefined Value.Under normal circumstances, for particular frequency range, the transmitting-receiving conversion time of same type equipment is equal with hair receipts conversion time, because It can not be distinguished when this is calculated using St.

Te is the timing error limitation of the network equipment or terminal.Wherein, timing error limitation is that the actual transmissions of equipment are fixed When and with reference to the error between timing the upper limit, i.e. error cannot exceed [- Te, Te].Its value depends on the number of respective links According to configured transmission (such as subcarrier spacing, frequency range etc.) or measurement error or predefined value.Wherein, with reference to fixed When can be understood as theoretic transmission timing.Such as the uplink transmission timing for terminal, compare downlink reception with reference to timing Timing advance (N_TA+N_TAoffset)·T_c.Wherein N_TAIt is mentioned for the uplink of the network equipment or terminal transmission versus downstream received time Preceding amount, N_TAoffsetValue depend on occur uplink cell dual-mode and frequency range, can pre-define, or Person is determined by first node.T_cFor the minimum time unit in NR system.

T_marginIt is unavailable symbol surplus.T_marginValue be predetermined, or depending on the timed-shutoff of node System, perhaps timing depending on the data transmission parameters of unavailable symbol respective links or depending on minizone radio frames Maximum deviation, can be according to the integral multiple of the minimum time unit in symbol or NR system (such as 16T_c) quantified.

N_symbolIt is the symbolic number that a time slot includes.For normal cyclic prefix, N_symbol=14；Before Extended Cyclic Sew, N_symbol=12.

T_{symbol_k}Indicate the corresponding symbol duration of subcarrier spacing of the data transmission of kth link.

It is rounded in expression.

Fig. 4 is a kind of flow chart for data transmission method that an embodiment provides, as shown in figure 4, provided in this embodiment Method includes the following steps.

Step S4010, first node receive timing related information.

Data transmission method provided in this embodiment is applied to shown in first node namely Fig. 2 in mobile communication system First node in connection relationship.For the second node in connection relationship shown in Fig. 2, since second node needs to dispatch third The transfer resource of node, therefore first node needs avoid dispatching the generation of transfer resource used in third node with second node Conflict.So for first node, timing related information that first node will receive second node and report.Second node The timing related information reported is one or more information relevant with timing relevant to second node.

In one embodiment, timing related information includes at least one of the following:

Time offset of the downlink reception timing of second node relative to the downlink transmission timing of first node；Second section Time offset of the uplink transmission timing of point relative to the downlink reception timing of second node；The downlink of second node sends fixed When relative to second node downlink reception timing time offset；The uplink receiving timing of second node is relative to the second section The time offset of the downlink transmission timing of point；The uplink receiving timing of second node is fixed relative to the downlink reception of second node When time offset；Time migration of the uplink transmission timing of second node relative to the downlink transmission timing of second node Amount；Time offset of the uplink transmission timing of second node relative to the uplink receiving timing of second node；Second node Receive and dispatch conversion time；The hair of second node receives conversion time.

In one embodiment, timing related information is with the timing related information after specific time unity quantization.Quantization The result is that the result after being quantified to time offset and/or conversion time with specific time unit；To time offset and Or conversion time with specific time unity quantization refer to time offset and/or conversion time divided by after specific time unit again on Rounding or lower rounding；Specific time unit is the corresponding symbol duration in reference subcarrier interval or current bandwidth part Minimum time unit in the corresponding symbol duration of subcarrier spacing or NR system of (Bandwidth part, BWP), or The integral multiple of minimum time unit in person's NR system.

Step S4020, for first node according to timing related information schedule data transmission, data transmission includes that upstream data passes Defeated or downlink data transmission.

After first node receives the timing related information that second node reports, first node can be believed according to timing is related The data transmission of breath scheduling second node.First node scheduling second node data transmission include transmitting uplink data or under The transmission of row data.The time resource type of timing related information and second node that first node is reported according to second node can To determine transfer resource that the DU of second node may be used, and protection interval is reserved, to avoid first node to the second section Point data transmission influence second node DU resource use, such as avoid influence second node DU Hard resource or It is designated as the use of available Soft resource.

In one embodiment, first node is transmitted according to the data that timing related information dispatches second node, comprising: first Node determines the unavailable symbol that second node and first node carry out data transmission according to timing related information；First node exists Do not dispatched on unavailable symbol second node data transmission or first node unavailable symbol and second node data When the resource of transmission is overlapping, the symbol overlapped with unavailable symbol is destroyed.What second node and first node carried out data transmission Unavailable symbol refers to the non-serviceable symbol of the MT of second node.Such as second node scheduling third node is in a certain symbol Upper carry out uplink namely second node carry out uplink receiving, then since hair receives conversion time or transmitting-receiving conversion time, with And the influence of timing relationship of each link of second node etc., in certain time interval before or after this symbol, One node cannot dispatch second node and carry out uplink transmission, then the symbol before or after this symbol in certain time interval It is unavailable symbol.First node does not dispatch the data transmission of second node on unavailable symbol.Or first node exists When the data transmission resources of unavailable symbol and second node overlap, in order to guarantee that the data of DU of second node are transmitted, first Node will destroy the symbol overlapped with unavailable symbol, be counted then first node obviously can not dispatch the symbol being struck off According to transmission.

In one embodiment, first node determines that second node and first node carry out according at least one of following information The unavailable symbol of data transmission:

Timing related information；Timing error limitation；Unavailable symbol surplus；Data between first node and second node Transmission direction；The subcarrier spacing that data are transmitted between first node and second node；Number between first node and second node According to the symbol duration of transmission；The time resource type of second node.

In one embodiment, the undesirable first kind for making second node of data transmission of first node scheduling second node Resource is not available, that is, first node scheduling second node data transmission when, first have to consider second node time Resource type, because second node assumes that its first kind resource is always available, if the resource that first node will be dispatched Protection interval between the first kind resource of second node meets particular requirement, then first node can be on the resource Second node is dispatched, otherwise cannot dispatch second node on the resource, for example, particular requirement includes at least one following: when Second node needs do transmitting-receiving conversion or hair is received when turning, it is desirable that protection interval is more than or equal to transmitting-receiving conversion time/transmission conversion Time；When second node does not need to do transmitting-receiving conversion or hair receipts conversion, the data between first node and second node are passed The defeated resource used and the first kind resource of second node cannot overlap, i.e., claimed interval is more than or equal to 0；It is claimed Interval is more than or equal to transmitting-receiving conversion time/transmission conversion time.Wherein, first kind resource includes at least one of: Hard DL resource, Hard F resource, Hard UL resource are designated as available SoftDL resource, are designated as available Soft F resource, It is designated as available Soft UL resource.If the data transmission of first node scheduling second node can make the first kind of second node Type resource is not available, then first node transmits the data for not dispatching second node, if first node scheduling second node Data transmission will not be such that the first kind resource of second node is not available, then the data that first node dispatches second node again pass It is defeated.

Data transmission method provided in this embodiment, is applied to first node, and first node receives what second node reported After timing related information, according to the uplink of timing related information and the time resource type dispatch second node of second node or Downlink data transmission, so that the data of first node scheduling second node be avoided to transmit used transfer resource and second node The transfer resource that uses of DU generate conflict, improve resource utilization and data transmission performance.

In one embodiment, first node can also be passed according to the data of at least one scheduling second node of following information It is defeated: the timing information of first node；Timing error limitation；Unavailable symbol surplus；Number between first node and second node According to transmission direction；The subcarrier spacing that data are transmitted between first node and second node；Between first node and second node The symbol duration of data transmission；The time resource type of second node.

Fig. 5 is the flow chart for another data transmission method that an embodiment provides, as shown in figure 5, the present embodiment provides Method include the following steps.

Step S5010, second node determine timing related information.

Data transmission method provided in this embodiment is applied to shown in second node namely Fig. 2 in mobile communication system Second node namely IAB node in connection relationship.For the second node in connection relationship shown in Fig. 2, due to second node Need to dispatch the transfer resource of third node, thus when first node need to dispatch second node carry out data transmission when, need Avoid first node dispatch transfer resource influence second node DU resource use, such as avoid influence Hard resource or It is designated as the use of available Soft resource.So second node is determined firstly the need of determining timing related information, second node Timing related information be relevant to second node with the relevant one or more information of timing.

Timing related information includes at least one of the following: the downlink reception timing of second node relative under first node The time offset of row transmission timing；The uplink transmission timing of second node relative to second node downlink reception timing when Between offset；Time offset of the downlink transmission timing of second node relative to the downlink reception timing of second node；Second Time offset of the uplink receiving timing of node relative to the downlink transmission timing of second node；The uplink receiving of second node Time offset of the timing relative to the downlink reception timing of second node；The uplink transmission timing of second node is relative to second The time offset of the downlink transmission timing of node；Uplink receiving of the uplink transmission timing of second node relative to second node The time offset of timing；The transmitting-receiving conversion time of second node；The hair of second node receives conversion time.

In one embodiment, timing related information is with the timing related information after specific time unity quantization.

Step S5020, second node report timing related information to first node, and timing related information is used for first node The data transmission of second node is dispatched, the data transmission of second node includes transmitting uplink data or downlink data transmission.

In one embodiment, second node does not expect that first node makes the of second node to the transmission of the data of second node One resource type is not available, wherein first kind resource includes at least one of: Hard DL, Hard F, Hard UL, It is designated as available Soft DL resource, is designated as available Soft F resource, is designated as available Soft UL resource.

After second node determines timing related information, timing related information will be reported to first node.Timing related information For the data transmission of first node scheduling second node, the data transmission of second node includes transmitting uplink data or lower line number According to transmission.So after first node receives the timing related information that second node reports, first node can be according to timing Relevant information dispatches the data transmission of second node.

In one embodiment, second node can also dispatch third according to first node to the dispatch situation of second node The data of node are transmitted, and the data transmission of third node includes transmitting uplink data or downlink data transmission.Namely when first After node is to the scheduling of second node, second node obtains the transfer resource that the MT of second node may be used, therefore second Node according to the resource service condition of the MT of second node, can dispatch the transmitting uplink data of third node or downlink data passes It is defeated, thus the MT for the second node for avoiding the scheduling of data transmission of the second node to third node from having determined first node Transfer resource generate conflict.

In one embodiment, second node dispatches third node according to first node to the dispatch situation of second node Data transmission, comprising: second node, to the dispatch situation of second node, determines third node and second node according to first node The unavailable symbol carried out data transmission；Second node does not dispatch the data transmission of third node on unavailable symbol, or Second node destroys the symbol overlapped with unavailable symbol when the resource that the data of unavailable symbol and third node are transmitted is overlapping Number.The unavailable symbol that third node and second node carry out data transmission, is the non-serviceable symbol of DU of second node.Example If first node scheduling second node carries out uplink namely second node progress uplink transmission on a certain symbol, then Since transmitting-receiving conversion time or hair receive the influence of timing relationship of each link of conversion time and second node etc., at this In certain time interval before or after symbol, second node cannot dispatch third node and carry out uplink receiving namely second Node not can be carried out uplink receiving.Symbol so before or after this symbol in certain time interval is unavailable symbol Number.Second node does not dispatch the data transmission of third symbol on unavailable symbol.Or second node unavailable symbol with When the data transmission resources of third node are overlapping, in order to guarantee that first node has determined that the data transmission of scheduling, second node will The symbol overlapped with unavailable symbol is destroyed, then second node, which obviously can not dispatch the symbol being struck off, carries out data biography It is defeated.

In one embodiment, second node determines that third node and second node carry out according at least one of following information The unavailable symbol of data transmission:

Dispatch situation of the first node to second node；Timing related information；Timing error limitation；More than unavailable symbol Amount；Data transfer direction between second node and third node；The time resource type of second node.

Data transmission method provided in this embodiment is applied to second node, after second node determines timing related information, Timing related information, transmitting uplink data of the timing related information for first node scheduling second node are reported to first node Or downlink data transmission, first node also needs to consider the time resource type of second node when dispatching second node, to avoid The transfer resource that the DU of transfer resource used in the data transmission of first node scheduling second node and second node is used produces Raw conflict, improves resource utilization and data transmission performance.

In one embodiment, second node can also be passed according to the data of at least one scheduling third node of following information It is defeated: dispatch situation of the first node to second node；Timing related information；Timing error limitation；Unavailable symbol surplus；Second Data transfer direction between node and third node；The time resource type of second node.

Fig. 6 is the flow chart for another data transmission method that an embodiment provides, as shown in fig. 6, the present embodiment provides Method include the following steps.

Step S6010, first node receive protection interval.

Data transmission method provided in this embodiment is applied to shown in first node namely Fig. 2 in mobile communication system First node in connection relationship.In the embodiment shown in fig. 4, first node receives the timing correlation letter that second node reports Breath, and transmitted according to the data that timing related information dispatches second node.And in the present embodiment, it is that first node is received The protection interval that two nodes report.The protection interval that second node reports refers to that second node does not expect first node and the second section Data between point transmit the time-domain resource used.First node receives the timing that second node reports in embodiment illustrated in fig. 4 After relevant information, equally protection interval can be determined according to timing related information.For the second section in connection relationship shown in Fig. 2 Point, since second node needs to dispatch the transfer resource of third node, first node needs avoid dispatching with second node Transfer resource used in third node generates conflict.So for first node, first node will receive the second section The protection interval that point reports.The protection interval that second node reports is one kind relevant with protection interval relevant to second node Or much information.

In one embodiment, protection interval includes at least one of the following: the protection interval of downlink；The protection interval of uplink； Unified protection interval；Reference subcarrier interval.

In one embodiment, the protection interval of downlink refers between first node and second node between the protection of downlink Every including at least one of: the protection interval of the starting position of each time slot of downlink, each time slot of downlink End position protection interval, the protection interval of the starting position of one or more continuous slots of downlink, downlink chain The protection interval of the end position of one or more continuous slots on road, second node hard Hard resource or be designated as can The protection interval of downlink after soft Soft resource, second node Hard resource or be designated as available Soft The protection interval of downlink before resource, second node Hard downlink resource or be designated as available Soft downlink money The protection interval of downlink after source, second node Hard downlink resource or be designated as available Soft downlink resource The protection interval of downlink before, second node Hard ascending resource or be designated as available Soft ascending resource it The protection interval of downlink afterwards, in the Hard ascending resource of second node or before being designated as available Soft ascending resource The protection interval of downlink, in the Hard flexible resource of second node or under being designated as after available Soft flexible resource The protection interval of line link, in the Hard flexible resource of second node or downlink before being designated as available Soft flexible resource The protection interval of link.

In one embodiment, the protection interval of uplink refers between first node and second node between the protection of uplink Every including at least one of: the protection interval of the starting position of each time slot of uplink, each time slot of uplink End position protection interval, the protection interval of the starting position of one or more continuous slots of uplink, uplink The protection interval of the end position of one or more continuous slots on road, second node Hard resource or be designated as can be used Soft resource after uplink protection interval, second node Hard resource or be designated as available Soft resource The protection interval of uplink before, second node Hard downlink resource or be designated as available Soft downlink resource it The protection interval of uplink afterwards, in the Hard downlink resource of second node or before being designated as available Soft downlink resource The protection interval of uplink, second node Hard ascending resource or be designated as after available Soft ascending resource The protection interval of line link, in the Hard ascending resource of second node or uplink before being designated as available Soft ascending resource The protection interval of link, second node Hard flexible resource or be designated as uplink after available Soft flexible resource The protection interval on road, in the Hard flexible resource of second node or uplink before being designated as available Soft flexible resource Protection interval.

In one embodiment, unified protection interval refers to the protection interval of link between first node and second node, packet Include at least one of: the protection interval of the starting position of each time slot, the protection interval of the end position of each time slot, one Or the protection interval of the starting position of the identical continuous slot of multiple transmission directions, one or more transmission directions are identical continuous The protection interval of the end position of time slot, second node Hard resource or be designated as link after available Soft resource Protection interval, the Hard resource of second node or before being designated as available Soft resource link protection interval, In The Hard downlink resource of second node or the protection interval for being designated as link after available Soft downlink resource, in the second section The Hard downlink resource of point or the protection interval for being designated as link before available Soft downlink resource, in second node Hard ascending resource or the protection interval for being designated as link after available Soft ascending resource, on the Hard of second node Row resource or the protection interval for being designated as link before available Soft ascending resource, in the Hard flexible resource of second node Perhaps the protection interval of link after available Soft flexible resource is designated as in the Hard flexible resource of second node or is referred to It is shown as the protection interval of link before available Soft flexible resource.

Wherein, link includes uplink and downlink.

In one embodiment, protection interval is using specific time unit as granularity.Wherein, specific time unit is to carry with reference to son The corresponding symbol duration of wave spacing, the perhaps corresponding symbol duration of subcarrier spacing or the minimum in NR system of current BWP The integral multiple of minimum time unit in chronomere or NR system.

In one embodiment, protection interval is according to following at least one information acquisition: the timing of each link of second node Information；The downlink reception timing of second node；The downlink transmission timing of second node；The uplink transmission timing of second node；The The uplink receiving timing of two nodes；The uplink transmission timing of second node is mentioned with respect to the time of the downlink reception timing of second node Preceding amount；Timing advance compensation；The index value of timing advance order instruction；The uplink receiving timing of first node is relative to first segment The time offset of the downlink transmission timing of point；It is fixed that the uplink receiving timing of first node is sent relative to the downlink of first node When time offset half；Timing error limitation；Receive and dispatch conversion time；Hair receives conversion time；Unavailable symbol surplus；Ginseng Examine subcarrier spacing.

Step S6020, first node according to protection interval schedule data transmission, data transmission include transmitting uplink data or Downlink data transmission.

After first node receives the protection interval that second node reports, first node can dispatch the according to protection interval The data of two nodes are transmitted.The data transmission of the second node of first node scheduling includes that transmitting uplink data or downlink data pass It is defeated.Since the protection interval that second node reports already have accounted for timing information, the timing error limitation of each link of second node Etc., and first node is known that the time resource type of second node, therefore first node is in the number of scheduling second node When according to transmission, so that it may avoid first node from influencing the second section to the transmission of the data of second node according to the protection interval received The use of the resource of the DU of point, such as avoid the Hard resource for influencing second node DU or be designated as available Soft resource It uses.

In one embodiment, first node is transmitted according to the data that protection interval dispatches second node, comprising: first node The data transmission of second node is not dispatched in protection interval；Or first node is passed in protection interval and the data of second node When defeated resource is overlapping, the symbol overlapped with protection interval is destroyed.

Data transmission method provided in this embodiment, is applied to first node, and first node receives what second node reported After protection interval, transmitted according to the upstream or downstream data that protection interval dispatches second node, so that first node be avoided to dispatch The data of second node transmit used transfer resource to conflict with the transfer resource generation that the DU of second node is used, and improves Resource utilization and data transmission performance.

Fig. 7 is the flow chart for another data transmission method that an embodiment provides, as shown in fig. 7, the present embodiment provides Method include the following steps.

Step S7010, second node determine protection interval.

Data transmission method provided in this embodiment is applied to shown in second node namely Fig. 2 in mobile communication system Second node namely IAB node in connection relationship.In the embodiment shown in fig. 5, second node determines timing related information, And timing related information is reported to first node.And in the present embodiment, second it is confirmed that protection interval.Second node determines Protection interval refer to that second node does not expect that the data between first node and second node transmit the time-domain resource used.Figure After second node determines timing related information in 5 illustrated embodiments, equally protection interval can be determined according to timing related information. Second node in connection relationship shown in Fig. 2 is worked as since second node needs to dispatch the transfer resource of third node First node needs to dispatch second node when carrying out data transmission, and the transfer resource for needing that first node is avoided to dispatch influences second The resource of the DU of node uses, such as influences Hard resource or be designated as the use of available Soft resource.So the second section For point firstly the need of protection interval is determined, the protection interval that second node determines is relevant related with protection interval to second node One or more information.

Wherein, link includes uplink and downlink.

Step S7020, second node report protection interval to first node, and protection interval is for first node scheduling second The data of node are transmitted, and the data transmission of second node includes transmitting uplink data or downlink data transmission.

After second node determines protection interval, protection interval will be reported to first node.Protection interval is used for first node The data transmission of second node is dispatched, the data transmission of second node includes transmitting uplink data or downlink data transmission.So After first node receives the protection interval that second node reports, first node can dispatch second node according to protection interval Data transmission.Since the protection interval that second node reports already have accounted for timing information, the timing of each link of second node Error limitation etc., and first node is known that the time resource type of second node, therefore first node is in scheduling second When the data transmission of node, so that it may avoid first node from transmitting shadow to the data of second node according to the protection interval received The use of the resource of the DU of second node is rung, such as avoids the Hard resource for influencing second node DU or is designated as available The use of Soft resource.

In one embodiment, second node can also dispatch third according to first node to the dispatch situation of second node The data of node are transmitted, and the data transmission of third node includes transmitting uplink data or downlink data transmission.

In one embodiment, second node dispatches third node according to first node to the dispatch situation of second node Data transmission, comprising: second node, to the dispatch situation of second node, determines third node and second node according to first node The unavailable symbol carried out data transmission；Second node does not dispatch the data transmission of third node on unavailable symbol, or Second node destroys the symbol overlapped with unavailable symbol when the resource that the data of unavailable symbol and third node are transmitted is overlapping Number.

In one embodiment, second node determines that third node and second node carry out according at least one of following information The unavailable symbol of data transmission: dispatch situation of the first node to second node, timing related information；Timing error limitation； Unavailable symbol surplus；Data transfer direction between second node and third node；The time resource type of second node.

Data transmission method provided in this embodiment is applied to second node, after second node determines protection interval, to the One node reports protection interval, and transmitting uplink data or downlink data of the protection interval for first node scheduling second node pass It is defeated, so that the DU of transfer resource used in the data transmission of first node scheduling second node and second node be avoided to use Transfer resource generates conflict, improves resource utilization and data transmission performance.

In one embodiment, further include following at least one situation: second node does not expect to receive the in protection interval The data that one node is sent；Second node does not expect to send data to first node in protection interval；Second node is undesirable It is dispatched in protection interval by first node.

Fig. 4 to Fig. 7 shows the implementing procedure of data transmission method provided by the embodiments of the present application, below with several specific realities Example is applied to being further described after data transmission method provided by the embodiments of the present application.

Embodiment one:

The data for the timing related information scheduling second node that first node is reported according to second node are transmitted.

In the present embodiment, the timing related information that first node is reported according to second node, determine the first link or The unavailable symbol of third link determines the unavailable symbol of second node MT.

The Hard resource or Soft IA resource of second node DU is total to its sublink (i.e. the second link, the 4th link) It is available, therefore the data transmission of father's backhaul link (i.e. the first link, third link) of second node should avoid influencing as far as possible The use of the Hard resource or Soft IA resource of DU.

First node receives the timing related information that second node reports.Wherein, timing related information include it is following at least One:

Time off-set T of the downlink reception timing of second node relative to the downlink transmission timing of first node_offset1； Time off-set T of the uplink transmission timing of second node relative to the downlink reception timing of second node_offset2；Second node Downlink transmission timing relative to second node downlink reception timing time off-set T_offset3；The uplink of second node connects Receive time off-set T of the timing relative to the downlink transmission timing of second node_offset4；The uplink receiving timing phase of second node For the time off-set T of the downlink reception timing of second node_offset5；The uplink transmission timing of second node is relative to second The time off-set T of the downlink transmission timing of node_offset6；The transmitting-receiving conversion time of second node；The hair of second node, which is received, to be turned Change the time.

In one embodiment, timing related information can for its quantization as a result, quantization the result is that time offset And/or conversion time quantified with specific time unit after result.

In one embodiment, to time offset and/or conversion time with specific time unity quantization refer to time offset and Or conversion time is divided by upper rounding or lower rounding again after specific time unit.

In one embodiment, specific time unit is the corresponding symbol duration in reference subcarrier interval, or current BWP The integral multiple of the corresponding symbol duration of subcarrier spacing perhaps the minimum time unit in NR system or minimum time unit, Such as 16T_c。

In one embodiment, first node is passed according to the uplink or downlink of following at least one parameter scheduling second node It is defeated: the timing of first node, timing related information, timing error limitation, unavailable symbol surplus, first node and second node Between data transfer direction, the time resource type of second node.

In one embodiment, second node does not expect that the data transmission between first node and second node influences the second section The use of the Class1 resource of point DU.

In one embodiment, first node obtains at least one following parameter:

Between the DL Tx timing of first node or the DL Tx timing and the DL Rx timing of second node of second node when Between poor Δ T1, the time difference Δ T2 between the UL Tx timing and the UL Rx timing of second node of second node, second node Time difference between DL Tx timing and the DL Tx timing of first node, timing error limitation, unavailable symbol surplus.

In one embodiment, first node dispatches in the resource adjacent with the Class1 resource time of second node DU When the upstream or downstream transmission of two nodes, the unavailable symbol of the first link or third link is determined according at least one parameter. These unavailable symbols are avoided when the upstream or downstream transmission of first node scheduling second node, or when the symbol dispatched and not Available symbols destroy overlapping symbol when overlapping.

In one embodiment, Class1 resource includes at least one following: Hard DL, Hard F, Hard UL is designated as Available Soft resource.

In one embodiment, Soft resource, including at least one following: Soft DL, Soft F, Soft UL.

First node is using following any one mode acquisition time difference Δ T1:

Mode 1:

It is obtained according to the timing related information that second node reports.

For example, directly reporting time of the downlink reception timing of second node relative to the downlink transmission timing of first node Offset (i.e. the downlink reception of second node is with respect to the delay that the downlink of first node is sent) T_offset1, i.e. Δ T1；On alternatively, Report the downlink transmission timing of second node relative to the time off-set T of the downlink reception timing of second node_offset3, i.e. Δ T1；Alternatively, report the uplink transmission timing of second node relative to the downlink reception timing of second node time offset (i.e. Timing Advance) T_offset2, according to T_offset2Calculate Δ T1.Wherein, T_offset2It may include N_TAoffset, can also not include N_TAoffset, if comprising that can pre-define.N_TAoffsetValue depend on occur uplink cell dual-mode and Frequency range can be pre-defined, or be determined by first node.Wherein, according to T_offset2The mode for calculating Δ T1 is Δ T1 =0.5T_offset2+T_deltaIf, wherein T_offset2Include N_TAoffset,If T_offset2Do not include N_TAoffset, thenWherein, T_gBetween the UL Rx timing and DL Tx timing of first node Time migration (by UL Rx to DL Tx, i.e., T when UL Rx ratio DL Tx shifts to an earlier date_gMore than or equal to 0, otherwise less than 0).

The method for obtaining Δ T1 according to the timing related information that second node reports is more, will not enumerate here.

Mode 2:

First node saves the initial time lead that first node when second node is initially accessed is sent to second node N_TA(i.e. absolute time lead) and the subsequent relatively current Timing Advance N for being sent to second node_{TA_old}Adjustment amount T_A, and the newest Timing Advance N of second node is calculated according to the two parameters_{TA_new}=N_{TA_old}+(T_A-31)·16·64/2^μ, wherein μ is subcarrier spacing configuration, the subcarrier spacing that the uplink of corresponding second node uses.N_{TA_new}·T_cI.e. absolutely Timing Advance, according to N_{TA_new}·T_cCalculate the mode of Δ T1 and according to T_offset2The mode for calculating Δ T1 is similar, uses N_{TA_new}·T_cReplace T_offset2, which is not described herein again.Wherein, T_cFor the minimum time unit in NR system.

First node is using following any one mode acquisition time difference Δ T2:

Mode 1:

For example, reporting the uplink transmission timing of second node relative to the time migration of the downlink reception timing of second node Measure T_offset2Time offset of the uplink receiving timing relative to the downlink reception timing of second node with second node T_offset5, obtain the time difference Δ T2 between the uplink transmission timing of second node and uplink receiving timing；Alternatively,

Report time offset of the uplink receiving timing of second node relative to the downlink transmission timing of second node T_offset4Time off-set T with the uplink transmission timing of second node relative to the downlink transmission timing of second node_offset6, Obtain the time difference Δ T2 between the uplink transmission timing of second node and uplink receiving timing；

The method for obtaining Δ T2 according to the timing related information that second node reports is more, will not enumerate here.

Mode 2:

Second node directly reports Δ T2.

The mode that first node obtains transmitting-receiving conversion time (either hair receives conversion time) is pre-defined or the second section Point reports.

Following examples give first node in the Hard with second node DU so that Class1 resource is Hard resource as an example The first link or third link are determined not when dispatching the upstream or downstream transmission of second node in the adjacent resource of resource time The method of available symbols.

The case where Class1 resource is other resources is similar, directly the Hard resource in replacement example.

It is MT Downlink after example 1:DU Hard

In this example, the downlink that first node dispatches second node after the Hard resource of the DU of second node passes It is defeated.As shown in Figure 8 a, Fig. 8 a is a kind of timing diagram for data transmission method that the embodiment of the present application one provides, when Δ T1 is big In equal to thresholding T_th1When, then the DL available symbols (i.e. the available symbols of the first link) of second node MT are from second node DU's First sign-on after Hard resource.I.e. after Hard resource the first link can not signed number be 0, i.e., only use Δ T1 can as protection interval.First symbol in figure after the Hard resource of second node DU is next time slot Symbol 0.

Again as shown in Figure 8 b, Fig. 8 b is the timing signal for another data transmission method that the embodiment of the present application one provides Figure, when Δ T1 is less than thresholding T_th1When, then the DL available symbols of second node MT are after the Hard resource of second node DUA sign-on.I.e. after Hard resource the first link can not signed number beWherein,It is rounded in expression, T_{symbol_1}For symbol duration, between corresponding subcarrier It is divided into the subcarrier spacing of the first link data transfer.The 2nd symbol (Hard in figure after the Hard resource of second node DU The starting available symbols of MT afterwards) be next time slot symbol 1.

Wherein, thresholding T_th1Conversion time St is received equal to hair, or is equal to hair and receives conversion time St and timing error restricted T e The sum of, or be equal to hair and receive the conversion time St and unavailable symbol surplus T of timing error restricted T e and first_margin1The sum of.

In one embodiment, first node connects according to the downlink transmission timing of second node relative to the downlink of second node Receive the time off-set T of timing_offset3Obtain the downlink transmission timing of second node, T_margin1Value depend on first node With the downlink transmission timing of second node, the time difference for example, between the two is predetermined or node it Between downlink transmission timing difference the upper limit.

In one embodiment, if not being Hard resource before the downlink transfer of first node scheduling second node, or It is not to be designated as available Soft resource, then the DL available symbols (i.e. the available symbols of the first link) of second node MT are from second First sign-on after the non-Hard resource of node DU.

It is MT Downlink before two: DU Hard of example

In this example, first node dispatches the downlink transfer of second node before the Hard resource of second node DU. As shown in Figure 8 c, Fig. 8 c is the timing diagram for another data transmission method that the embodiment of the present application one provides, and works as T_{symbol_1}- Δ T1 is more than or equal to thresholding T_th2When, then the DL available symbols (i.e. the available symbols of the first link) of second node MT are in the second section Second sign-off before the Hard resource of point DU.I.e. before Hard resource the first link can not signed number be 1.In figure Second symbol is the symbol N of a upper time slot before the Hard resource of second node DU_symbol-2。

Again as shown in figure 8d, Fig. 8 d is the timing signal for another data transmission method that the embodiment of the present application one provides Figure, works as T_{symbol_1}Δ T1 is less than thresholding T_th2When, then the DL available symbols (i.e. the available symbols of the first link) of second node MT Before the Hard resource of second node DU A symbol knot Beam.I.e. before Hard resource the first link can not signed number beThird accords with before the Hard resource of second node DU in figure It number is the symbol N of a upper time slot_{symbol_1}-3。T_{symbol_1}For symbol duration, corresponding subcarrier spacing is the first link data The subcarrier spacing of transmission.

Wherein, thresholding T_th2Equal to transmitting-receiving conversion time St, or it is equal to transmitting-receiving conversion time St and timing error restricted T e The sum of, or it is equal to the transmitting-receiving conversion time St and unavailable symbol surplus T of timing error restricted T e and second_margin2The sum of.

In one embodiment, first node connects according to the downlink transmission timing of second node relative to the downlink of second node Receive the time off-set T of timing_offset3Obtain the downlink transmission timing of second node.T_margin2Value depend on first node With the downlink transmission timing of second node, the time difference both for example, is predetermined or node between under The upper limit of the difference of row transmission timing, or the data transmission parameters of the link depending on second node.

In one embodiment, thresholding T_th2And T_th1It is equal.

In one embodiment, if not being Hard resource after the downlink transfer of first node scheduling second node, or It is not to be designated as available Soft resource, then the DL available symbols (i.e. the available symbols of the first link) of second node MT are second First symbol or second sign-off before the non-Hard resource of node DU.

It is MT Uplink after example 3:DU Hard

In this example, first node dispatches the uplink of second node after the Hard resource of second node DU. As figure 8 e shows, Fig. 8 e is the timing diagram for another data transmission method that the embodiment of the present application one provides, and works as T_{symbol_3}- Δ T2 is more than or equal to thresholding T_th3When, then the UL available symbols (i.e. the available symbols of third link) of second node MT are from the second section Second sign-on after the Hard resource of point DU.I.e. after Hard resource third link can not signed number be 1.In figure Second symbol after the Hard resource of second node DU is the symbol 1 of next time slot.

Again as illustrated in fig. 8f, Fig. 8 f is the timing signal for another data transmission method that the embodiment of the present application one provides Figure, works as T_{symbol_3}Δ T2 is less than thresholding T_th3When, then Hard resource of the UL available symbols of second node MT from second node DU LaterA sign-on.That is third chain after Hard resource Road can not signed number be Wherein,It is taken in expression It is whole.The 3rd symbol in figure after the Hard resource of second node DU is the symbol 2 of next time slot.T_{symbol_3}When for symbol Long, corresponding subcarrier spacing is the subcarrier spacing of third link data transfer.

Wherein, thresholding T_th3Equal to transmitting-receiving conversion time St, or it is equal to transmitting-receiving conversion time St and timing error restricted T e The sum of, or it is equal to the transmitting-receiving conversion time St and timing error restricted T e and unavailable symbol surplus T of third_margin3The sum of

In one embodiment, T_margin3Value depend on second node link data transmission parameters, or it is pre- First define.

In one embodiment, if not being Hard resource before the uplink of first node scheduling second node, or It is not to be designated as available Soft resource, then the UL available symbols (i.e. the available symbols of third link) of second node MT are from second First symbol or second sign-on after the non-Hard resource of node DU.

It is MT Uplink before example 4:DU Hard

In this example, first node dispatches the uplink of second node before the Hard resource of second node DU. As illustrated in fig.8g, Fig. 8 g is the timing diagram for another data transmission method that the embodiment of the present application one provides, when Δ T2 is big In equal to thresholding T_th4When, then the UL available symbols (i.e. the available symbols of third link) of second node MT are second node DU's First sign-off before Hard resource.I.e. before Hard resource third link can not signed number be 0.Second section in figure First symbol before the Hard resource of point DU is the symbol N of a upper time slot_symbol-1。

For another example shown in Fig. 8 h, Fig. 8 h is the timing signal for another data transmission method that the embodiment of the present application one provides Figure, when Δ T2 is less than thresholding T_th4When, then the UL available symbols of second node MT are before the Hard resource of second node DUA sign-off.Third link can not signed number i.e. before Hard resource ForWherein,It is rounded in expression.In figure before the Hard resource of second node DU 2nd symbol is the symbol N of next time slot_symbol-2。T_{symbol_3}For symbol duration, corresponding subcarrier spacing is third chain The subcarrier spacing of circuit-switched data transmission.

Wherein, thresholding T_th4Conversion time St is received equal to hair, or is equal to hair and receives conversion time St and timing error restricted T e The sum of, or be equal to hair and receive the conversion time St and unavailable symbol surplus T of timing error restricted T e and the 4th_margin4The sum of.

In one embodiment, T_margin4Value depend on second node link data transmission parameters, or it is pre- First define.

In one embodiment, thresholding T_th4And T_th3It is equal.

In one embodiment, if not being Hard resource after the uplink of first node scheduling second node, or It is not to be designated as available Soft resource, then the UL available symbols (i.e. the available symbols of third link) of second node MT are second First sign-off before the non-Hard resource of node DU.

Embodiment two:

The protection interval that first node is reported according to second node dispatches second node.

First node receives the protection interval that reports of second node, according to protection interval dispatch second node uplink or under Row transmission.

Wherein, protection interval, including at least one following: the protection interval of downlink, the protection interval of uplink, flexible resource Protection interval, unified protection interval, reference subcarrier interval μ_ref。

In one embodiment, the protection interval of downlink refers to the protection interval of the first link, including at least one of: each The protection interval N of time slot starting position_start1, the protection interval N of each time slot end position_end1, provided in the Hard of second node The protection interval N of first link after source or Soft IA resource_after1, in the Hard resource or Soft IA of second node The protection interval N of first link before resource_before1。

In one embodiment, the protection interval of uplink refers to the protection interval of third link, including at least one of: each The protection interval N of time slot starting position_start2, the protection interval N of each time slot end position_end2, provided in the Hard of second node The protection interval N of third link after source or Soft IA resource_after2, in the Hard resource or Soft IA of second node The protection interval N of third link before resource_before2.Wherein, time slot is the corresponding time slot of third link.

In one embodiment, unified protection interval refers to the protection interval of the link between first node and second node, Including at least one of: the protection interval of each time slot starting position, the protection interval of each time slot end position, second The protection interval of link after the Hard resource or Soft IA resource of node between first node and second node, The protection interval of link before the Hard resource or Soft IA resource of two nodes between first node and second node.

In one embodiment, the protection interval of flexible resource refers at least one of: the Hard flexible resource of second node Or after Soft IA flexible resource the first link protection interval N_after3, the Hard flexible resource or Soft of second node The protection interval N of first link before IA flexible resource_before3, the Hard flexible resource or Soft IA of second node be flexible The protection interval N of third link after resource_after4, before the Hard flexible resource or Soft IA flexible resource of second node The protection interval N of third link_before4。

In one embodiment, Hard resource includes at least one following: Hard DL, Hard UL, Hard F.

In one embodiment, Soft resource includes at least one following: Soft DL, Soft UL, Soft F.

In one embodiment, referred in protection interval not according to the upstream or downstream transmission that protection interval dispatches second node Dispatch the resource of the uplink perhaps uplink or downlink transfer of downlink transfer or protection interval and second node of second node The symbol overlapped with protection interval is destroyed when overlapping.

In one embodiment, protection interval is the numerical value as unit of specific time unit.Wherein, specific time unit is The subcarrier spacing of the corresponding symbol duration in reference subcarrier interval or current bandwidth part (BWP, Bandwith Part) The integral multiple of the corresponding symbol duration perhaps minimum time unit in the minimum time unit or NR system in NR system, Such as 1024T_c。

In one embodiment, protection interval is with the value after the corresponding symbol duration quantization of the subcarrier spacing of current BWP.

In one embodiment, protection interval is at least obtained by following one: the downlink reception timing of second node, and second The downlink transmission timing of node, the uplink transmission timing of second node, second node uplink receiving timing, second node it is upper Timing Advance N of the row transmission timing with respect to the downlink reception timing of second node_TA, timing advance compensation N_TAoffset, periodically mention The index value T of preceding order instruction_A, time of the uplink receiving timing of first node relative to the downlink transmission timing of first node Offset T_offset, the uplink receiving of first node is periodically relative to the time offset of the downlink transmission timing of first node Half T_delta=-0.5T_offset, timing error limitation, transmitting-receiving conversion time, hair receipts conversion time, unavailable symbol surplus, Reference subcarrier interval.

In one embodiment, the protection interval acquisition modes of downlink, including at least one following:

N₁₁=T_th1Δ T1, if N₁₁≤ 0, then the protection interval N of each time slot starting position_start1=0 or The Hard resource of two nodes or the protection interval N after Soft IA resource_after1=0；If N₁₁> 0, then each time slot is opened The protection interval N of beginning position_start1For N₁₁OrEither in the Hard resource of second node or Soft IA Protection interval N after resource_after1For N₁₁Or

N₁₂=T_th2-T_symbol+ Δ T1, if N₁₂≤ 0, then the protection interval of each time slot end positionThe either protection interval before the Hard resource of second node or Soft IA resourceIf N₁₂> 0, then the protection interval N of each time slot end position_end1For N₁₂+ T_symbolOrEither before the Hard resource of second node or Soft IA resource Protection interval N_before1For N₁₂+T_symbolOr

In one embodiment, the protection interval acquisition modes of uplink, including at least one following:

N₂₁=T_th3-T_symbol+ Δ T2, if N₂₁≤ 0, then the protection interval of each time slot starting positionEither between the protection after the Hard resource of second node or Soft IA resource EveryIf N₂₁> 0, then the protection interval N of each time slot starting position_start2For N₂₁+ T_symbolOrEither after the Hard resource of second node or Soft IA resource Protection interval N_after2For N₂₁+T_symbolOr

N₂₂=T_th4Δ T2, if N₂₂≤ 0, then the protection interval N of each time slot end position_end2=0, or second The Hard resource of node or the protection interval N before Soft IA resource_before2=0；If N₂₂> 0, then each time slot terminates The protection interval N of position_end2For N₂₂OrEither in the Hard resource of second node or Soft IA resource Protection interval N before_before2For N₂₂Or

In one embodiment, the protection interval acquisition modes of flexible resource, including at least one following:

N₁₁=T_th1Δ T1, if N₁₁≤ 0, then the Hard flexible resource of second node or Soft IA flexible resource it The protection interval N of first link afterwards_after3=0；If N₁₁> 0, then the Hard flexible resource of second node or Soft IA spirit The protection interval N of first link after quick stock source_after3For N₁₁Or

N₁₂=T_th2-T_symbol+ Δ T1, if N₁₂≤ 0, then the Hard flexible resource of second node or Soft IA are flexible The protection interval of first link before resourceIf N₁₂> 0, then second node The protection interval N of first link before Hard flexible resource or Soft IA flexible resource_before3For N₁₂+T_symbolOr

N₂₁=T_th3-T_symbol+ Δ T2, if N₂₁≤ 0, then the Hard flexible resource of second node or Soft IA are flexible The protection interval of third link after resourceIf N₂₁> 0, the then Hard of second node The protection interval N of third link after flexible resource or Soft IA flexible resource_after4For N₂₁+T_symbolOr

N₂₂=T_th4Δ T2, if N₂₂≤ 0, then the Hard flexible resource of second node or Soft IA flexible resource it The protection interval N of preceding third link_before4=0；If N₂₂> 0, then the Hard flexible resource of second node or Soft IA spirit The protection interval N of third link before quick stock source_before4For N₂₂Or

Wherein, T_unitFor refer to reference subcarrier interval perhaps the corresponding symbol duration of subcarrier spacing of current BWP or The integral multiple of NR system minimum time unit；T_symbolSubcarrier spacing to refer to reference subcarrier interval or current BWP is corresponding Symbol duration.

In one embodiment, first node is used according to protection interval and the first link or third link actual transmissions Subcarrier spacing μ and reference subcarrier interval μ_refDetermine the protection interval of the actual transmissions of the first link or third link.

By taking the protection interval of downlink as an example, the protection interval of the actual transmissions of downlink: Mei Geshi is determined in the following way The protection interval of gap starting positionThe protection interval of each time slot end position The Hard resource or the protection interval after Soft IA resource of two nodesIt is provided in the Hard of second node Protection interval before source or Soft IA resource

In one embodiment, for the protection interval of the protection interval of uplink or flexible resource, using with determine downlink The similar modes of protection interval type of actual transmissions determine the protection intervals of actual transmissions, i.e., between the protection of actual transmissions Be divided into uplink protection interval or flexible resource protection interval multiplied byUpper again afterwards to be rounded, which is not described herein again.

Embodiment three:

Third node is dispatched in scheduling of the second node according to first node to second node.

In the present embodiment, it is not designated as the Soft resource of second node or available Soft resource, second Node is according to first node to the dispatch situation of second node, the i.e. time-domain resource of link between first node and second node Service condition determines the unavailable symbol of the sublink (i.e. the second link or the 4th link) of second node.For second node Hard resource or be designated as available Soft resource, second node dispatch third node when without the concern for first node pair The dispatch situation of second node.

Second node is transmitted based on the upstream or downstream of at least one message scheduling third node.Wherein, at least one is believed Breath, including at least one following: timing related information, timing error limitation, unavailable symbol surplus, first node is to the second section The scheduling of resource of point, the time resource type of second node.

Wherein, timing related information includes at least one of following:

Time off-set T of the downlink reception timing of second node relative to the downlink transmission timing of first node_offset1；

Time off-set T of the uplink transmission timing of second node relative to the downlink reception timing of second node_offset2；

Time off-set T of the downlink transmission timing of second node relative to the downlink reception timing of second node_offset3；

Time off-set T of the uplink receiving timing of second node relative to the downlink transmission timing of second node_offset4；

Time off-set T of the uplink receiving timing of second node relative to the downlink reception timing of second node_offset5；

Time off-set T of the uplink transmission timing of second node relative to the downlink transmission timing of second node_offset6；

The transmitting-receiving conversion time of second node；

The hair of second node receives conversion time.

In one embodiment, second node determines unavailable symbol: timing related information, timing based at least one of following Error limitation, unavailable symbol surplus, the data transfer direction between second node and third node, the time money of second node Source Type.

In one embodiment, second node cannot dispatch the uplink of third node on unavailable symbol or downlink passes It is destroyed when the resource of defeated or third node uplink or downlink transfer and overlapping unavailable symbol overlapping with unavailable symbol Symbol.

Following example gives scheduling of the second node according to first node to second node, determines the second link or the 4th The method of the unavailable symbol of link.

The meaning of parameter illustrates:

Δ T3 is the time difference between the downlink transmission timing of second node and the downlink reception timing of second node；

Δ T4 is the time difference between the uplink receiving timing of second node and the uplink transmission timing of second node；

Δ T5 is the time difference between the uplink receiving timing of second node and the downlink reception timing of second node；

Δ T6 is the time difference between the downlink transmission timing of second node and the uplink transmission timing of second node.

Second node can calculate or derive Δ T3, Δ T4, the value of Δ T5 and Δ T6 according to timing related information.

In one embodiment, the DL resource of second node DU is Soft DL resource in the following example, or scheduling DL is passed Defeated F resource；The UL resource of second node DU is the F resource of Soft UL resource or schedule UL transmissions.

It is DU Downlink before example 1:MT Downlink

It in this example, is second node before the time-domain resource that the first link (i.e. the DL of the MT of second node) is occupied The DL resource of DU.Symbol 0 and 1 is distributed to the MT of second node by first node, i.e. the symbol that the first link occupies is 0 He of symbol 1.As illustrated in fig. 9, Fig. 9 a is a kind of timing diagram for data transmission method that the embodiment of the present application two provides.When Δ T3 >= T_th5When, then the symbol that the first link occupies does not have the unavailable symbol of the DL of second node DU before, i.e., occupies in the first link Before symbol the DL of second node DU can not signed number be 0.

Again as shown in figure 9b, Fig. 9 b is the timing signal for another data transmission method that the embodiment of the present application two provides Figure.As Δ T3 < T_th5When, then before the symbol that the first link occupies A symbol is The unavailable symbol of the DL of second node DU.The DL that 1 symbol is second node DU before the symbol that the first link occupies in figure Unavailable symbol.

Wherein, Δ T3 is the downlink reception of downlink transmission timing (i.e. the DU DL Tx timing) and second node of second node The periodically time difference between (i.e. the DL Rx timing of MT).

Wherein, thresholding T_th5Conversion time St is received equal to hair, or is equal to hair and receives conversion time St and timing error restricted T e The sum of, or be equal to hair and receive the conversion time St and unavailable symbol surplus T of timing error restricted T e and the 5th_margin5The sum of.

Wherein, T_margin5Value depend on the second link data transmission parameters or predefined value.

It is DU Downlink after example 2:MT Downlink

It in this example, is second node after the time-domain resource that the first link (i.e. the DL of the MT of second node) is occupied The DL resource of DU.As is shown in fig. 9 c, Fig. 9 c is the timing signal for another data transmission method that the embodiment of the present application two provides Figure.Work as T_{symbol_1}-ΔT3≥T_th6When, then the DL that 1 symbol after the symbol of the first link occupancy is second node DU can not With symbol, i.e., after the symbol that the first link occupies the DL of second node can not signed number be 1.

Again as shown in figure 9d, Fig. 9 d is the timing signal for another data transmission method that the embodiment of the present application two provides Figure.Work as T_{symbol_1}Δ T3 < T_th6When, then after the symbol that the first link occupiesA symbol is the unavailable symbol of DL of second node DU.In figure The unavailable symbol of DL that 2 symbols are second node DU after the symbol that first link occupies, i.e. symbol 2 and 3 is second node The unavailable symbol of the DL of DU.

Wherein, thresholding T_th6Equal to transmitting-receiving conversion time St, or it is equal to transmitting-receiving conversion time St and timing error restricted T e The sum of, or it is equal to the transmitting-receiving conversion time St and unavailable symbol surplus T of timing error restricted T e and the 6th_margin6The sum of.

Wherein, T_margin6Value depend on the second link data transmission parameters or predefined value.

In one embodiment, thresholding T_th6And T_th5It is equal.

It is DU Uplink before example 3:MT Uplink

It in this example, is second node before the time-domain resource that third link (i.e. the UL of the MT of second node) is occupied The UL resource of DU.Symbol 1 and 2 is distributed to the MT of second node by first node, i.e., the symbol that third link occupies is 1 He of symbol 2.As shown in figure 9e, Fig. 9 e is the timing diagram for another data transmission method that the embodiment of the present application two provides.When T_{symbol_3}-ΔT4≥T_th7When, then 1 symbol is second node DU before the symbol that third link occupies the unavailable symbol of UL Number.Symbol 0 is the unavailable symbol of UL of second node DU i.e. in figure.

Again as shown in figure 9f, Fig. 9 f is the timing signal for another data transmission method that the embodiment of the present application two provides Figure.Work as T_{symbol_3}Δ T4 < T_th7When, then before the symbol that third link occupiesA symbol is the unavailable symbol of DL of second node DU.In figure The unavailable symbol of DL that 2 symbols are second node DU before the symbol that third link occupies.

Wherein, Δ T4 is that the uplink receiving timing (i.e. DU UL Rx timing) of second node and the uplink of second node are sent The periodically time difference between (i.e. MT UL Tx timing).

Wherein, thresholding T_th7Equal to transmitting-receiving conversion time St, or it is equal to transmitting-receiving conversion time St and timing error restricted T e The sum of, or it is equal to the transmitting-receiving conversion time St and unavailable symbol surplus T of timing error restricted T e and the 6th_margin7The sum of.

Wherein, T_margin7Value depend on the 4th link data transmission parameters or predefined value.

It is DU Uplink after example 4:MT Uplink

It in this example, is second node after the time-domain resource that third link (i.e. the UL of the MT of second node) is occupied The UL resource of DU.Symbol 1 and 2 is distributed to the MT of second node by first node, i.e., the symbol that third link occupies is 1 He of symbol 2.As shown in figure 9g, Fig. 9 g is the timing diagram for another data transmission method that the embodiment of the present application two provides.As Δ T4 ≥T_th8When, then without the unavailable symbol of UL of second node DU after the symbol that third link occupies.

As shown in Fig. 9 h, Fig. 9 h is the timing diagram for another data transmission method that the embodiment of the present application two provides. As Δ T4 < T_th8When, then after the symbol that third link occupies A symbol is the The unavailable symbol of DL of two node DU.In figure before the symbol that third link occupies 1 symbol be the DL of second node DU not Available symbols, i.e. symbol 3 are the unavailable symbol of DL of second node DU.

Wherein, thresholding T_th8Conversion time St is received equal to hair, or is equal to hair and receives conversion time St and timing error restricted T e The sum of, or be equal to hair and receive the conversion time St and unavailable symbol surplus T of timing error restricted T e and the 6th_margin8The sum of.

Wherein, T_margin8Value depend on the 4th link data transmission parameters or predefined value.

In one embodiment, thresholding T_th8And T_th7It is equal.

A kind of method when being DU Uplink before and after example 5:MT Downlink

It in this example, is the UL resource of second node DU before and after the time-domain resource that the first link occupies.

In this case, the MT of second node is received on the first chain road, the UL of the DU of second node in second node It is also to receive, therefore second node does not need transmitting-receiving conversion or hair receives conversion in resource.

Reserved protection symbol, i.e., the time domain occupied in the first link are not needed before and after the time-domain resource that the first link occupies Without the unavailable symbol of UL of second node DU before and after resource.

Another method when being DU Uplink before and after example 6:MT Downlink

If the UL resource of the resource and DU that occupy in view of the first link overlaps in the time domain, two links connect simultaneously It receives, then there may be interfere with each other, it may be considered that following scheme:

When the UL resource of resource and DU that the first link occupies is not overlapping in the time domain, then in the symbol of the first link occupancy Number front and back second node UL can not signed number be 0.

When the UL resource of resource and DU that the first link occupies overlaps in the time domain, then in the UL resource of second node DU Overlapping symbol is the unavailable symbol of UL of second node DU.

For example, Δ T5 is the uplink receiving timing (i.e. DU UL Rx) of second node and the downlink reception timing of second node Time difference between (i.e. MT DL Rx), and downlink reception timing of the uplink receiving timing of second node than second node mentions Before, then

The symbol that the UL resource of second node DU before the time-domain resource that first link occupies is occupied with the first link does not have Have overlapping, then there is no a unavailable symbol of the UL of second node DU before the symbol that the first link occupies, i.e., occupied in the first link Symbol before second node UL can not signed number be 0, as illustrated in fig. 9i, Fig. 9 i be the embodiment of the present application two provide it is another A kind of timing diagram of data transmission method.

The symbol that the UL resource of second node DU after the time-domain resource that first link occupies is occupied with the first link has Overlapping, then overlapping symbol is the unavailable symbol of UL of second node DU, and as shown in Fig. 9 j, Fig. 9 j is that the embodiment of the present application two mentions The timing diagram of another data transmission method supplied, symbol 2 are unavailable symbol.

A kind of method when being DU Downlink before and after example 7:MT Uplink

It in this example, is the DL resource of second node DU before and after the time-domain resource that third link occupies.

In this case, the MT of second node is sent on third chain road, the DL of the DU of second node in second node It is also to send, therefore second node does not need transmitting-receiving conversion or hair receives conversion in resource.

Reserved protection symbol, i.e., the time domain occupied in third link are not needed before and after the time-domain resource that third link occupies Without the unavailable symbol of DL of second node DU before and after resource.

Another method when being DU Downlink before and after example 8:MT Uplink

If the DL resource of the resource and DU that occupy in view of third link overlaps in the time domain, two links connect simultaneously It receives, then there may be interfere with each other, it may be considered that following scheme:

When the DL resource of resource and DU that third link occupies is not overlapping in the time domain, then in the symbol of third link occupancy Number front and back second node DL can not signed number be 0.

When the DL resource of resource and DU that third link occupies overlaps in the time domain, then in the DL resource of second node DU Overlapping symbol is the unavailable symbol of DL of second node DU.

For example, Δ T6 is the uplink transmission timing of downlink transmission timing (i.e. the DU DL Tx) and second node of second node Time difference between (i.e. MT UL Tx), and the downlink transmission timing of second node is prolonged than the uplink transmission timing of second node Late, then,

The symbol that the DL resource of second node DU before the time-domain resource that third link occupies is occupied with third link has Overlapping, then overlapping symbol is the unavailable symbol of DL of second node DU, and as shown in Fig. 9 k, Fig. 9 k is that the embodiment of the present application two mentions The timing diagram of another data transmission method supplied, symbol 0 are unavailable symbol.

The symbol that the DL resource of second node DU after the time-domain resource that third link occupies is occupied with third link does not have Have overlapping, then there is no a unavailable symbol of the DL of second node DU after the symbol that third link occupies, i.e., occupied in third link Symbol after second node DL can not signed number be 0, as shown in Fig. 9 l, Fig. 9 l be the embodiment of the present application two provide it is another A kind of timing diagram of data transmission method.

Embodiment 4:

Solution when unavailable symbol and cell signal specific or channel confliction

In general, cell signal specific or channel are to send in the period, so the unavailable symbol of a chain road and biography The resource potentially conflicting of defeated cell signal specific or channel.

For a node, conflict may be there are several types of:

1) cell signal specific or letter are transmitted on the unavailable symbol on father's backhaul link of node and father's backhaul link The resource in road overlaps in the time domain；And it is not overlapped with the resource for transmitting cell signal specific or channel in sublink；

2) the unavailable symbol in the sublink of node and the resource that cell signal specific or channel are transmitted in sublink It overlaps in the time domain；And it is not overlapped with the resource for transmitting cell signal specific or channel on father's backhaul link；

3) it is transmitted in node father backhaul link or unavailable symbol in sublink and father's backhaul link and sublink small Area's signal specific or the resource of channel are all overlapping in the time domain；

Conflict avoidance mode includes at least one following:

Cell signal specific or channel cannot transmit on unavailable symbol；

Cell signal specific or channel can transmit on unavailable symbol；

A part of signal or channel can transmit on unavailable symbol in cell signal specific or channel, another portion Dividing cannot transmit on unavailable symbol；

Determined whether to transmit cell signal specific or channel on unavailable symbol by node.

Preferably, cell signal specific or channel include at least one following:

Synchronization signal and Physical Broadcast Channel block, random access channel, channel state information reference signals, scheduling request, Remaining minimum system information.

It is worth noting that in above-mentioned all embodiments:

1) the corresponding sub- load of unavailable symbol of the sublink (i.e. the second link or the 4th link) of the second node determined Wave spacing is the subcarrier spacing that father's backhaul link (i.e. the first link or third link) data of second node are transmitted；

2) symbol when the sublink of second node and the son of the data transmission of father's backhaul link according to second node carry When the unavailable symbol determined between wave is overlapping, then the symbol of the sublink of second node is unavailable symbol.

3) it is only to illustrate in above-described embodiment attached drawing, the limitation to protection scope of the present invention should not be constituted, although The Hard resource (or Soft IA resource) of second node and the upstream or downstream of the first link of first node scheduling pass in attached drawing It is defeated to be located at different time slots, but protection scope of the present invention still includes the Hard resource (or Soft IA resource) of second node Upstream or downstream transmission with the first link of first node scheduling is located at the situation in the same time slot；

4) the unavailable symbol surplus in all examples can be identical.

It is worth noting that unavailable symbol is replaced with protection interval in this embodiment, can be obtained protection interval with Solution when cell signal specific or channel confliction.

Embodiment 5:

The solution of the resource contention of the MT and DU of second node

Since timing error, measurement error, quantization error etc. may cause determining unavailable symbol or protection interval It is less accurate.Therefore the case where the scheduling resource contention of the scheduling resource of second node MT and DU.

It, can be using following at least one processing side when the scheduling resource contention of the scheduling resource of second node MT and DU Formula:

If the Hard resource contention of MT and DU, second node oneself determines that MT is preferential or DU is preferential；If destroyed The scheduling resource of DU, DU can the data of transmitted over resources be struck off of degree of readjustment；

If the Soft resource contention of MT and DU, MT are preferential；

If MT and DU resource contention, DU is preferential, which symbol second node reports be not properly received to father node.

Figure 10 is a kind of structural schematic diagram for data transmission device that an embodiment provides, and data provided in this embodiment pass Defeated device is set to first node, and as shown in Figure 10, data transmission device provided in this embodiment includes: receiving module 101, if It is set to and receives the timing related information that second node reports；Scheduler module 102 is set as dispatching second according to timing related information The data of node are transmitted, and the data transmission of second node includes transmitting uplink data or downlink data transmission.

Data transmission method of the data transmission device provided in this embodiment for realizing embodiment illustrated in fig. 4, this implementation The realization principle and technical effect are similar for the data transmission device that example provides, and details are not described herein again.

Figure 11 is the structural schematic diagram for another data transmission device that an embodiment provides, data provided in this embodiment Transmitting device is set to second node, and as shown in figure 11, data transmission device provided in this embodiment comprises determining that module 111, It is set as determining timing related information；Sending module 112 is set as reporting timing related information to first node, and timing is related Information for first node scheduling second node data transmission, second node data transmission include transmitting uplink data or under The transmission of row data.

Data transmission method of the data transmission device provided in this embodiment for realizing embodiment illustrated in fig. 5, this implementation The realization principle and technical effect are similar for the data transmission device that example provides, and details are not described herein again.

Figure 12 is the structural schematic diagram for another data transmission device that an embodiment provides, data provided in this embodiment Transmitting device is set to first node, and as shown in figure 12, data transmission device provided in this embodiment includes: receiving module 121, It is set as receiving the protection interval that second node reports；Scheduler module 122 is set as dispatching second node according to protection interval Data transmission, data transmission include transmitting uplink data or downlink data transmission.

Data transmission method of the data transmission device provided in this embodiment for realizing embodiment illustrated in fig. 6, this implementation The realization principle and technical effect are similar for the data transmission device that example provides, and details are not described herein again.

Figure 13 is the structural schematic diagram for another data transmission device that an embodiment provides, data provided in this embodiment Transmitting device is set to second node, and as shown in figure 13, data transmission device provided in this embodiment comprises determining that module 131, It is set as determining protection interval；Sending module 132 is set as reporting protection interval to first node, and protection interval is used for first The data of node scheduling second node are transmitted, and the data transmission of second node includes transmitting uplink data or downlink data transmission.

Data transmission method of the data transmission device provided in this embodiment for realizing embodiment illustrated in fig. 7, this implementation The realization principle and technical effect are similar for the data transmission device that example provides, and details are not described herein again.

The embodiment of the present application also provides a kind of data transmission system, including first node and second node, is in addition also possible to Including third node.The connection relationship of first node, second node and third node is as shown in Figure 2.First node includes as schemed Data transmission device shown in 10 embodiments.Second node includes the data transmission device as shown in Figure 11 embodiment.

The embodiment of the present application also provides a kind of data transmission system, including first node and second node, is in addition also possible to Including third node.The connection relationship of first node, second node and third node is as shown in Figure 2.First node includes as schemed Data transmission device shown in 12 embodiments.Second node includes the data transmission device as shown in Figure 13 embodiment.

Figure 14 is a kind of structural schematic diagram for communication node that an embodiment provides, as shown in figure 14, the communication node packet Include processor 141, memory 142, transmitter 143 and receiver 144；The quantity of processor 141 can be one in communication node It is a or multiple, in Figure 14 by taking a processor 141 as an example；Processor 141 and memory 142, transmitter 143 in communication node With receiver 144；It can be connected by bus or other modes, in Figure 14 for being connected by bus.

Memory 142 is used as a kind of computer readable storage medium, and it is executable to may be configured as storage software program, computer Program and module, if the corresponding program instruction/module of data transmission method in the application Fig. 1-Fig. 6 embodiment is (for example, number According to the receiving module 121 and scheduling mould in the receiving module 101 and scheduler module 102 or data transmission device in transmitting device Block 122).Software program, instruction and the module that processor 141 is stored in memory 142 by operation, thus communication node At least one functional application and data processing, i.e. realization Fig. 4 or Fig. 6 data transmission method.

Memory 142 can mainly include storing program area and storage data area, wherein storing program area can store operation system Application program needed for system, at least one function；Storage data area, which can be stored, uses created data according to communication node Deng.In addition, memory 142 may include high-speed random access memory, it can also include nonvolatile memory, for example, at least One disk memory, flush memory device or other non-volatile solid state memory parts.

Transmitter 143 is that can send out module of the emission of radio frequency signals into space or combination of devices for example including radio frequency Penetrate the combination of machine, antenna and other devices.Receiver 144 is that can receive the module or device of radiofrequency signal from space Combination, the combination for example including radio-frequency transmitter, antenna and other devices.

Figure 15 is the structural schematic diagram for another communication node that an embodiment provides, as shown in figure 15, the communication node Including processor 151, memory 152, transmitter 153 and receiver 154；The quantity of processor 151 can be in communication node One or more, in Figure 15 by taking a processor 151 as an example；Processor 151 and memory 152, transmitter in communication node 153 and receiver 154；It can be connected by bus or other modes, in Figure 15 for being connected by bus.

Memory 152 is used as a kind of computer readable storage medium, and it is executable to may be configured as storage software program, computer Program and module, if the corresponding program instruction/module of data transmission method in the application Fig. 7 embodiment is (for example, data pass The determining module 131 and sending module in determining module 111 and sending module 112 or data transmission device in defeated device 132).Software program, instruction and the module that processor 151 is stored in memory 152 by operation, so that communication node is extremely A kind of few functional application and data processing, that is, realize the data transmission method of Fig. 5 or Fig. 7.

Memory 152 can mainly include storing program area and storage data area, wherein storing program area can store operation system Application program needed for system, at least one function；Storage data area, which can be stored, uses created data according to communication node Deng.In addition, memory 152 may include high-speed random access memory, it can also include nonvolatile memory, for example, at least One disk memory, flush memory device or other non-volatile solid state memory parts.

Transmitter 153 is that can send out module of the emission of radio frequency signals into space or combination of devices for example including radio frequency Penetrate the combination of machine, antenna and other devices.Receiver 154 is that can receive the module or device of radiofrequency signal from space Combination, the combination for example including radio-frequency transmitter, antenna and other devices.

The embodiment of the present application also provides a kind of storage medium comprising computer executable instructions, computer executable instructions When being executed by computer processor for executing a kind of data transmission method, this method comprises: first node receives the second section The timing related information that point reports；First node is transmitted according to the data that timing related information dispatches second node, second node Data transmission include transmitting uplink data or downlink data transmission.

The embodiment of the present application also provides a kind of storage medium comprising computer executable instructions, computer executable instructions When being executed by computer processor for executing a kind of data transmission method, this method comprises: second node determines timing phase Close information；Second node reports timing related information to first node, and timing related information dispatches the second section for first node The data transmission of the data transmission of point, second node includes transmitting uplink data or downlink data transmission.

The embodiment of the present application also provides a kind of storage medium comprising computer executable instructions, computer executable instructions When being executed by computer processor for executing a kind of data transmission method, this method comprises: first node receives the second section The protection interval that point reports；First node is transmitted according to the data that protection interval dispatches second node, and data transmission includes uplink Data transmission or downlink data transmission.

The embodiment of the present application also provides a kind of storage medium comprising computer executable instructions, computer executable instructions When being executed by computer processor for executing a kind of data transmission method, this method comprises: second node determines between protecting Every；Second node reports protection interval to first node, and data of the protection interval for first node scheduling second node are transmitted, The data transmission of second node includes transmitting uplink data or downlink data transmission.

It should be understood by those skilled in the art that, terms user terminal covers the wireless user equipment of any suitable type, Such as mobile phone, portable data processing device, portable web browser or vehicle-mounted mobile platform.

In general, the various embodiments of the application can be in hardware or special circuit, software, logic or any combination thereof Middle realization.For example, some aspects can be implemented within hardware, and can be implemented in can be by controller, micro- for other aspects In the firmware or software that processor or other computing devices execute, although the application is without being limited thereto.

Embodiments herein can execute computer program instructions by the data processor of mobile device and realize, example Such as in processor entity, perhaps pass through hardware or the combination by software and hardware.Computer program instructions can be remittance Compile instruction, instruction set architecture (InstructionSet Architecture, ISA) instruction, machine instruction, machine-dependent instructions, Microcode, firmware instructions, condition setup data or the source code write with any combination of one or more programming languages or Object code.

The block diagram of any logic flow in illustrations can be with representation program step, or can indicate to be connected with each other Logic circuit, module and function, or can be with the combination of representation program step and logic circuit, module and function.Computer Program can store on a memory.Memory can have any type for being suitable for local technical environment and can be used Any suitable data storage technology realizes, such as, but not limited to read-only memory (Read-Only Memory, ROM), random Access memory (Random Access Memory, RAM), optical memory device and system (digital video disc (Digital Video Disc, DVD) or CD (Compact Disc, CD)) etc..Computer-readable medium may include non-wink When property storage medium.Data processor can be any type for being suitable for local technical environment, such as, but not limited to general meter Calculation machine, special purpose computer, microprocessor, digital signal processor (Digital Signal Processing, DSP), dedicated collection At circuit (Application Specific Integrated Circuit, ASIC), programmable logic device (Field- Programmable Gate Array, FGPA) and processor based on multi-core processor framework.

Claims

1. a kind of data transmission method characterized by comprising

First node receives timing related information；

For the first node according to the timing related information schedule data transmission, the data transmission includes transmitting uplink data Or downlink data transmission.

2. the method according to claim 1, wherein the first node is dispatched according to the timing related information Data transmission, comprising:

The first node determines the unavailable symbol carried out data transmission according to the timing related information；

The first node do not dispatched on the unavailable symbol data transmission or the first node it is described not When available symbols and the overlapping resource of data transmission, the symbol overlapped with the unavailable symbol is destroyed.

3. according to the method described in claim 2, it is characterized by further comprising:

The first node carries out the unavailable symbol of the data transmission according at least one determination of following information:

The timing related information；

Timing error limitation；

Unavailable symbol surplus；

The data transfer direction；

The subcarrier spacing of the data transmission；

The symbol duration of the data transmission；

The time resource type of second node.

4. described in any item methods according to claim 1~3, which is characterized in that the timing related information include with down toward One item missing:

Time offset of the downlink reception timing of second node relative to the downlink transmission timing of the first node；

Time offset of the uplink transmission timing of second node relative to the downlink reception timing of the second node；

Time offset of the downlink transmission timing of second node relative to the downlink reception timing of the second node；

Time offset of the uplink receiving timing of second node relative to the downlink transmission timing of the second node；

Time offset of the uplink receiving timing of second node relative to the downlink reception timing of the second node；

Time offset of the uplink transmission timing of second node relative to the downlink transmission timing of the second node；

Time offset of the uplink transmission timing of second node relative to the uplink receiving timing of the second node；

The transmitting-receiving conversion time of second node；

The hair of second node receives conversion time.

5. described in any item methods according to claim 1~3, it is characterised in that:

The timing related information is with the timing related information after specific time unity quantization.

6. described in any item methods according to claim 1~3, which is characterized in that further include:

The first node is dispatched the data according at least one of following information and is transmitted:

The timing information of the first node；

Timing error limitation；

Unavailable symbol surplus；

The data transfer direction；

The subcarrier spacing of the data transmission；

The symbol duration of the data transmission；

The time resource type of second node.

7. a kind of data transmission method characterized by comprising

Second node determines timing related information；

The second node reports the timing related information to first node, and the timing related information is used for the first segment Point dispatches the data transmission of the second node, and the data transmission of the second node includes transmitting uplink data or downlink data Transmission.

8. the method according to the description of claim 7 is characterized in that further include:

According to the first node to the dispatch situation of the second node, the data for dispatching third node pass the second node Defeated, the data transmission of the third node includes transmitting uplink data or downlink data transmission.

9. according to the method described in claim 8, it is characterized in that, the second node is according to the first node to described The dispatch situation of two nodes, the data transmission of scheduling third node, comprising:

The second node, to the dispatch situation of the second node, determines the third node and institute according to the first node State the unavailable symbol that second node carries out data transmission；

The data that the second node does not dispatch the third node on the unavailable symbol are transmitted or second section Point is destroyed and is handed over the unavailable symbol when the resource that the data of the unavailable symbol and the third node are transmitted is overlapping Folded symbol.

10. according to the method described in claim 9, it is characterized in that, the second node is according at least one of following information Determine the unavailable symbol that the third node and the second node carry out data transmission:

Dispatch situation of the first node to the second node；

The timing related information；

Timing error limitation；

Unavailable symbol surplus；

Data transfer direction between the second node and the third node；

The time resource type of the second node.

11. according to the described in any item methods of claim 7~10, which is characterized in that the timing related information includes following At least one of:

Time offset of the downlink reception timing of the second node relative to the downlink transmission timing of the first node；

Time offset of the uplink transmission timing of the second node relative to the downlink reception timing of the second node；

Time offset of the downlink transmission timing of the second node relative to the downlink reception timing of the second node；

Time offset of the uplink receiving timing of the second node relative to the downlink transmission timing of the second node；

Time offset of the uplink receiving timing of the second node relative to the downlink reception timing of the second node；

Time offset of the uplink transmission timing of the second node relative to the downlink transmission timing of the second node；

Time offset of the uplink transmission timing of the second node relative to the uplink receiving timing of the second node；

The transmitting-receiving conversion time of the second node；

The hair of the second node receives conversion time.

12. according to the described in any item methods of claim 7~10, which is characterized in that the timing related information is with specific Timing related information after chronomere's quantization.

13. according to the described in any item methods of claim 8~10, which is characterized in that further include:

The second node is transmitted according to the data of at least one scheduling third node of following information:

Dispatch situation of the first node to the second node；

The timing related information；

Timing error limitation；

Unavailable symbol surplus；

Data transfer direction between the second node and the third node；

The time resource type of the second node.

14. a kind of data transmission method characterized by comprising

First node receives protection interval；

The first node according to the protection interval schedule data transmission, the data transmission include transmitting uplink data or under The transmission of row data.

15. according to the method for claim 14, which is characterized in that the first node dispatches number according to the protection interval According to transmission, comprising:

The first node does not dispatch the data transmission in the protection interval；

Or the first node is destroyed between the protection when the resource of the protection interval and data transmission is overlapping Every overlapping symbol.

16. method according to claim 14 or 15, which is characterized in that the protection interval includes at least one of the following:

The protection interval of downlink；

The protection interval of uplink；

Unified protection interval；

Reference subcarrier interval.

17. method according to claim 14 or 15, which is characterized in that the protection interval is using specific time unit as grain Degree.

18. method according to claim 14 or 15, which is characterized in that the protection interval is according to following at least one letter Breath obtains:

The downlink reception timing of second node；

The downlink transmission timing of second node；

The uplink transmission timing of second node；

The uplink receiving timing of second node；

Timing Advance of the uplink transmission timing of second node with respect to the downlink reception timing of second node；

Timing advance compensation；

The index value of timing advance order instruction；

Time offset of the uplink receiving timing of the first node relative to the downlink transmission timing of the first node；

The uplink receiving of the first node is periodically relative to the time offset of the downlink transmission timing of the first node Half；

Timing error limitation；

Receive and dispatch conversion time；

Hair receives conversion time；

Unavailable symbol surplus；

Reference subcarrier interval.

19. according to the method for claim 16, which is characterized in that the protection interval of the downlink refer to the first node and The protection interval of downlink between second node, including at least one of: the beginning of each time slot of the downlink The protection interval of position, the protection interval of the end position of each time slot of the downlink, one of the downlink Or the protection interval of the starting position of multiple continuous slots, the end position of one or more continuous slots of the downlink Protection interval, the second node hard Hard resource or be designated as the downlink chain after available soft Soft resource The protection interval on road, the second node Hard resource or be designated as available Soft resource foregoing description downlink Protection interval, the second node Hard downlink resource or be designated as after available Soft downlink resource it is described under The protection interval of line link, in the Hard downlink resource of the second node or before being designated as available Soft downlink resource The protection interval of the downlink, the second node Hard ascending resource or be designated as available Soft uplink money The protection interval of the downlink after source, the second node Hard ascending resource or be designated as available Soft The protection interval of ascending resource foregoing description downlink, the second node Hard flexible resource or be designated as can be used Soft flexible resource after the downlink protection interval, in the Hard flexible resource of the second node or instruction For the protection interval of available Soft flexible resource foregoing description downlink.

20. according to the method for claim 16, which is characterized in that the protection interval of the uplink refer to the first node and The protection interval of uplink between second node, including at least one of: the beginning of each time slot of the uplink The protection interval of position, the protection interval of the end position of each time slot of the uplink, one of the uplink Or the protection interval of the starting position of multiple continuous slots, the end position of one or more continuous slots of the uplink Protection interval, the second node Hard resource or be designated as the uplink after available Soft resource Protection interval, the second node Hard resource or be designated as the guarantor of available Soft resource foregoing description uplink Shield interval, the second node Hard downlink resource or be designated as the uplink after available Soft downlink resource The protection interval on road, the second node Hard downlink resource or be designated as the available Soft downlink resource foregoing description The protection interval of uplink, the second node Hard ascending resource or be designated as available Soft ascending resource it The protection interval of the uplink afterwards, the second node Hard ascending resource or be designated as available Soft uplink The protection interval of resource foregoing description uplink, the second node Hard flexible resource or be designated as available The protection interval of the uplink after Soft flexible resource, the second node Hard flexible resource or be designated as The protection interval of available Soft flexible resource foregoing description uplink.

21. according to the method for claim 16, which is characterized in that the unified protection interval refer to the first node and The protection interval of link between second node, including at least one of: the protection interval of the starting position of each time slot, each The protection interval of the end position of time slot, between the protection of the starting position of the identical continuous slot of one or more transmission directions Every the protection interval of the end position of the identical continuous slot of one or more transmission directions, in the Hard of the second node Resource or the protection interval for being designated as the link after available Soft resource, the second node Hard resource or Person is designated as the protection interval of available Soft resource foregoing description link, the second node Hard downlink resource or Be designated as the protection interval of the link after available Soft downlink resource, the second node Hard downlink resource or Person is designated as the protection interval of available Soft downlink resource foregoing description link, in the Hard ascending resource of the second node Or it is designated as the protection interval of the link after available Soft ascending resource, it is provided in the Hard uplink of the second node Source or the protection interval for being designated as available Soft ascending resource foregoing description link, it is flexible in the Hard of the second node Resource or the protection interval for being designated as the link after available Soft flexible resource, in the Hard spirit of the second node Quick stock source or the protection interval for being designated as available Soft flexible resource foregoing description link.

Wherein, the link includes uplink and downlink.

22. a kind of data transmission method characterized by comprising

Second node determines protection interval；

The second node reports the protection interval to first node, and the protection interval dispatches institute for the first node The data transmission of second node is stated, the data transmission of the second node includes transmitting uplink data or downlink data transmission.

23. according to the method for claim 22, which is characterized in that further include:

24. according to the method for claim 23, which is characterized in that the second node is according to the first node to described The dispatch situation of second node, the data transmission of scheduling third node, comprising:

25. according to the method for claim 24, which is characterized in that the second node is according at least one of following information Determine the unavailable symbol that the third node and the second node carry out data transmission:

Dispatch situation of the first node to the second node；

The timing related information；

Timing error limitation；

Unavailable symbol surplus；

Data transfer direction between the second node and the third node；

The time resource type of the second node.

26. according to the described in any item methods of claim 22~25, which is characterized in that the protection interval include it is following at least One:

The protection interval of downlink；

The protection interval of uplink；

Unified protection interval；

Reference subcarrier interval.

27. according to the described in any item methods of claim 22~25, which is characterized in that the protection interval is with specific time list Position is granularity.

28. according to the described in any item methods of claim 22~25, which is characterized in that the protection interval according to it is following at least A kind of information acquisition:

The downlink reception timing of the second node；

The downlink transmission timing of the second node；

The uplink transmission timing of the second node；

The uplink receiving timing of the second node；

The Timing Advance of the downlink reception timing of the relatively described second node of the uplink transmission timing of the second node；

Timing advance compensation；

The index value of timing advance order instruction；

Timing error limitation；

Receive and dispatch conversion time；

Hair receives conversion time；

Unavailable symbol surplus；

Reference subcarrier interval.

29. according to the method for claim 26, which is characterized in that the protection interval of the downlink refer to the first node and The protection interval of downlink between the second node, including at least one of: each time slot of the downlink The protection interval of starting position, the protection interval of the end position of each time slot of the downlink, the downlink The protection interval of the starting position of one or more continuous slots, the end of one or more continuous slots of the downlink The protection interval of position, the second node hard Hard resource or be designated as after available soft Soft resource it is described under The protection interval of line link, the second node Hard resource or be designated as available Soft resource foregoing description downlink The protection interval of link, the second node Hard downlink resource or be designated as institute after available Soft downlink resource The protection interval for stating downlink, the second node Hard downlink resource or be designated as available Soft downlink resource The protection interval of foregoing description downlink, the second node Hard ascending resource or be designated as on available Soft The protection interval of the downlink after row resource, the second node Hard ascending resource or be designated as available The protection interval of Soft ascending resource foregoing description downlink, the second node Hard flexible resource or be designated as The protection interval of the downlink after available Soft flexible resource, the second node Hard flexible resource or It is designated as the protection interval of available Soft flexible resource foregoing description downlink.

30. according to the method for claim 26, which is characterized in that the protection interval of the uplink refer to the first node and The protection interval of uplink between the second node, including at least one of: each time slot of the uplink The protection interval of starting position, the protection interval of the end position of each time slot of the uplink, the uplink The protection interval of the starting position of one or more continuous slots, the end of one or more continuous slots of the uplink The protection interval of position, second node Hard resource or be designated as the uplink after available Soft resource Protection interval, in the Hard resource of second node or between being designated as the protection of available Soft resource foregoing description uplink Every, the second node Hard downlink resource or be designated as the uplink after available Soft downlink resource Protection interval, the second node Hard downlink resource or be designated as available Soft downlink resource foregoing description uplink The protection interval of link, the second node Hard ascending resource or be designated as institute after available Soft ascending resource The protection interval for stating uplink, the second node Hard ascending resource or be designated as available Soft ascending resource The protection interval of foregoing description uplink, the second node Hard flexible resource or be designated as available Soft spirit The protection interval of the uplink after quick stock source, the second node Hard flexible resource or be designated as available The protection interval of Soft flexible resource foregoing description uplink.

31. according to the method for claim 26, which is characterized in that the unified protection interval refer to the first node and The protection interval of link between the second node, including at least one of: the protection interval of the starting position of each time slot, The protection interval of the end position of each time slot, the protection of the starting position of the identical continuous slot of one or more transmission directions Interval, the protection interval of the end position of the identical continuous slot of one or more transmission directions, in the second node Hard resource or the protection interval for being designated as the link after available Soft resource are provided in the Hard of the second node Source or the protection interval for being designated as available Soft resource foregoing description link, in the Hard downlink resource of the second node Or it is designated as the protection interval of the link after available Soft downlink resource, it is provided in the Hard downlink of the second node Source or the protection interval for being designated as available Soft downlink resource foregoing description link, in the Hard uplink of the second node Resource or the protection interval for being designated as the link after available Soft ascending resource, on the Hard of the second node Row resource or the protection interval for being designated as available Soft ascending resource foregoing description link, in the Hard of the second node Flexible resource or the protection interval for being designated as the link after available Soft flexible resource, in the second node Hard flexible resource or the protection interval for being designated as available Soft flexible resource foregoing description link.

Wherein, the link includes uplink and downlink.

32. according to the described in any item methods of claim 22~25, which is characterized in that further include at least one of:

The second node does not expect to receive the data that the first node is sent in the protection interval；

The second node does not expect to send data to the first node in the protection interval；

The second node does not expect to be dispatched in the protection interval by the first node.

33. a kind of data transmission device, which is characterized in that be set to first node, comprising:

Receiving module is set as receiving timing related information；

Scheduler module is set as according to the timing related information schedule data transmission, and the data of the second node transmit packet Include transmitting uplink data or downlink data transmission.

34. a kind of data transmission device, which is characterized in that be set to second node, comprising:

Determining module is set as determining timing related information；

Sending module is set as reporting the timing related information to first node, and the timing related information is for described the The data of second node described in one node scheduling are transmitted, and the data transmission of the second node includes transmitting uplink data or downlink Data transmission.

35. a kind of data transmission device, which is characterized in that be set to first node, comprising:

Receiving module is set as receiving protection interval；

Scheduler module is set as according to the protection interval schedule data transmission, and the data transmission includes transmitting uplink data Or downlink data transmission.

36. a kind of data transmission device, which is characterized in that be set to second node, comprising:

Determining module is set as determining protection interval；

Sending module is set as reporting the protection interval to first node, and the protection interval is used for the first node tune The data transmission of the second node is spent, the data transmission of the second node includes that transmitting uplink data or downlink data pass It is defeated.

37. a kind of data transmission system, which is characterized in that including first node and second node；

The first node includes data transmission device as claimed in claim 33；

The second node includes data transmission device as claimed in claim 34.

38. a kind of data transmission system, which is characterized in that including first node and second node；

The first node includes data transmission device as claimed in claim 35；

The second node includes data transmission device as claimed in claim 36.